@charset "utf-8";

:root {
  --primary-blue: #0096c2;
  --secondary-blue: #026cac;
  --light-blue: #94C1DF;
  --bg-light: #f9f9f9;
  --text-dark: #333333;
  --text-gray: #666666;
  --border-color: #eef3f8;
}

body{
	background-color: #f9f9f9;
}

/* タブメニューナビゲーションエリア */
.tab-navigation-wrapper {
  /*background-color: var(--bg-light);*/
  padding: 30px 20px 40px;
  position: relative;
  z-index: 20;
}

.tab-menu {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 15px;
  /*max-width: 1000px;*/
  margin: 0 auto;
  padding: 0;
  list-style: none;
  flex-wrap: wrap;
}

.tab-menu li {
  flex: 1 1 200px;
  max-width: 230px;
}

.tab-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 16px 15px;
  background: #ffffff;
  color: var(--text-dark);
  border: 2px solid #e2ebf3;
  border-radius: 12px;
  text-decoration: none;
  font-weight: bold;
  transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
  cursor: pointer;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.03);
  user-select: none;
}

.tab-btn .tab-en {
  font-size: 0.75rem;
  color: var(--primary-blue);
  letter-spacing: 1.5px;
  text-transform: uppercase;
  font-weight: 800;
  margin-bottom: 4px;
}

.tab-btn .tab-ja {
  font-size: 1.05rem;
  color: var(--text-dark);
  transition: color 0.3s ease;
}

.tab-btn:hover {
  border-color: var(--primary-blue);
  transform: translateY(-3px);
  box-shadow: 0 8px 20px rgba(0, 150, 194, 0.15);
}

.tab-btn:hover .tab-ja {
  color: var(--primary-blue);
}

/* アクティブ状態のタブ */
.tab-btn.active {
  background: linear-gradient(135deg, var(--primary-blue) 0%, var(--secondary-blue) 100%);
  border-color: transparent;
  color: #ffffff;
  box-shadow: 0 8px 24px rgba(2, 108, 172, 0.35);
  transform: translateY(-2px);
}

.tab-btn.active .tab-en,
.tab-btn.active .tab-ja {
  color: #ffffff;
}

/* タブパネル切り替え制御 */
.tab-panel {
  display: none;
  opacity: 0;
  transition: opacity 0.4s ease;
}

.tab-panel.active {
  display: block;
  opacity: 1;
}

@media (max-width: 720px) {
  .tab-menu {
    gap: 10px;
  }
  .tab-menu li {
    flex: 1 1 45%;
    max-width: none;
  }
  .tab-btn {
    padding: 12px 10px;
  }
  .tab-btn .tab-en {
    font-size: 0.7rem;
  }
  .tab-btn .tab-ja {
    font-size: 0.95rem;
  }
}

#logo-section,
#philosophy-section,
#history-section,
#president-section{
	padding-top: 100px;
}


.history-timeline {
  position: relative;
  /*max-width: 860px;*/
  margin: 0 auto 80px;
  padding: 20px 0;
}

.history-timeline::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 190px;
  width: 3px;
  background: linear-gradient(180deg, var(--light-blue) 0%, var(--primary-blue) 50%, var(--secondary-blue) 100%);
  border-radius: 2px;
}

.timeline-item {
  display: flex;
  align-items: flex-start;
  margin-bottom: 45px;
  position: relative;
}

.timeline-date {
  width: 170px;
  text-align: right;
  padding-right: 25px;
  flex-shrink: 0;
}

.year-wrap {
  display: inline-flex;
  align-items: baseline;
  color: var(--primary-blue);
}

.year {
  font-size: 2rem;
  font-weight: 900;
  font-style: italic;
  line-height: 1;
  letter-spacing: -1px;
}

.month {
  font-size: 1.1rem;
  font-weight: 800;
  font-style: italic;
  margin-left: 2px;
}

.era {
  display: block;
  font-size: 0.78rem;
  color: var(--text-gray);
  font-weight: 600;
  margin-top: 3px;
}

.timeline-marker {
  width: 15px;
  height: 15px;
  background: #ffffff;
  border: 3px solid var(--primary-blue);
  border-radius: 50%;
  position: absolute;
  left: 184px;
  top: 6px;
  z-index: 10;
  box-shadow: 0 0 0 4px rgba(0, 150, 194, 0.15);
  transition: transform 0.3s ease, background-color 0.3s ease;
}

.timeline-item:hover .timeline-marker {
  transform: scale(1.3);
  background-color: var(--primary-blue);
}

.timeline-content {
  margin-left: 52px;
  margin-top: 13.5px;
  background: #ffffff;
  padding: 22px 26px;
  border-radius: 0 12px 12px 12px;
  box-shadow: 0 4px 18px rgba(0, 0, 0, 0.04);
  border: 1px solid var(--border-color);
  flex-grow: 1;
  position: relative;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.timeline-item:hover .timeline-content {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
}

.timeline-content::before {
  content: "";
  position: absolute;
  top: -1px;
  left: -16px;
  width: 0;
  height: 0;
  border-style: solid;
  border-width: 0 16px 16px 0;
  border-color: transparent var(--border-color) transparent transparent;
  z-index: 1;
}

.timeline-content::after {
  content: "";
  position: absolute;
  top: 0px;
  left: -14px;
  width: 0;
  height: 0;
  border-style: solid;
  border-width: 0 14px 14px 0;
  border-color: transparent #ffffff transparent transparent;
  z-index: 2;
}

.timeline-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--secondary-blue);
  margin-bottom: 8px;
  line-height: 1.4;
}

.timeline-text {
  font-size: 0.92rem;
  color: #555555;
  line-height: 1.7;
}

.timeline-item.highlight .timeline-marker {
  background: var(--secondary-blue);
  border-color: #ffffff;
  box-shadow: 0 0 0 4px rgba(2, 108, 172, 0.3);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(2, 108, 172, 0.5); }
  70% { box-shadow: 0 0 0 10px rgba(2, 108, 172, 0); }
  100% { box-shadow: 0 0 0 0 rgba(2, 108, 172, 0); }
}

.timeline-item.highlight .timeline-content {
  border-color: var(--light-blue);
  background: linear-gradient(135deg, #ffffff 0%, #f0f7fc 100%);
  box-shadow: 0 6px 22px rgba(2, 108, 172, 0.12);
}

.timeline-item.highlight .timeline-content::before {
  border-color: transparent var(--light-blue) transparent transparent;
}

.timeline-item.highlight .timeline-content::after {
  border-color: transparent #ffffff transparent transparent;
}

.timeline-item.highlight .timeline-title {
  color: var(--secondary-blue);
  font-size: 1.25rem;
}

@media (max-width: 720px) {
  .history-timeline::before {
    left: 20px;
  }

  .timeline-item {
    flex-direction: column;
    padding-left: 45px;
  }

  .timeline-date {
    width: 100%;
    text-align: left;
    padding-right: 0;
    margin-bottom: 10px;
  }

  .timeline-marker {
    left: 14px;
    top: 4px;
  }

  .timeline-content {
    margin-left: 0;
    margin-top: 0;
    width: 100%;
    border-radius: 0 12px 12px 12px;
  }

  .timeline-content::before {
    top: -16px;
    left: 0px;
    border-width: 0 0 16px 16px;
    border-color: transparent transparent var(--border-color) transparent;
  }

  .timeline-content::after {
    top: -14px;
    left: 1px;
    border-width: 0 0 14px 14px;
    border-color: transparent transparent #ffffff transparent;
  }

  .timeline-item.highlight .timeline-content::before {
    border-color: transparent transparent var(--light-blue) transparent;
  }

  .section-bg-title {
    font-size: 3.2rem;
  }
}


.subtxt{
  font-size: 1.2em;
  line-height: 1.8;
  margin-top: 50px;
  font-weight: bold;
}
.subtxt2{
  font-size: 0.8em;
  margin-top: 60px;
}

@media screen and (max-width: 720px) {
  .subtxt{
  font-size: 1.4em;
  }
  .subtxt2{
    font-size: 1em;
  }
}



.value-flex {
  display: flex;
  flex-wrap: nowrap;
  gap: 20px;
}

@media screen and (max-width: 720px) {
.value-flex {
		flex-direction:column
}
}

.value_item {
  display: flex;
  flex: 1;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  background: #ffffff;
  border-radius: 16px;
  padding: 30px;
  position: relative;
  border: 8px solid transparent;
  background: 
    linear-gradient(#ffffff, #ffffff) padding-box,
    linear-gradient(180deg, #cddce9, #026cac) border-box;
  box-shadow: 0 8px 20px rgba(0,0,0,0.04);
}

.value_read {
  text-align: center;
  font-size: 0.9em;
}

.value_ttl {
  font-size: 2em;
  font-weight: bold;
  color: #0096c2;
  display: inline-block;
  border-bottom: 4px solid #0096c2;
  padding-bottom: 6px;
}

.value_txt {
  margin-top: 20px;
}

.value_itemend {
  background-image: url(../image/philosophy/icon_bgtriangle.svg);
  background-size: 40px auto; 
  background-repeat: no-repeat; 
  background-position: center top;
  margin-top: 20px;
  padding-top: 30px;
  font-weight: bold;
  text-align: center;
}

.vison_bg {
  flex: 1;
  display: flex;
  justify-content: center;
  align-items: center;
  background: #ffffff;
  border-radius: 16px;
  padding: 30px;
  box-shadow: inset 0 0 20px rgba(0,0,0,0.02), 0 8px 20px rgba(0,0,0,0.04);
  border: 4px solid transparent; 
  position: relative;
}

.vision_flex {
  width: 100%;
  display: flex;
  gap: 10px;
  align-items: center;
  justify-content: center;
  
}

@media screen and (max-width: 720px) {
  .vision_flex {
    /*display: grid;*/
    flex-wrap: wrap;
    grid-template-columns: auto auto;
    justify-content: center;
  }
}

.vision_num {
  font-size: 2em;
  color: #0096c2;
  opacity: 0.3;
  flex-grow: 1;
}
@media screen and (max-width: 720px) {
  .vision_num {
  flex: 0 0 auto;
  }
}
.vision_ttl {
  font-size: 1.8em;
  font-weight: bold;
  flex-basis: 9em;
  flex-grow: 3;
  color: #0096c2;
}
@media screen and (max-width: 720px) {
  .vision_ttl {
    flex-basis: auto;
    flex: 0 0 auto;
    justify-self: start;
  }
}

.vision_txt {
  flex-grow: 8;
  text-align: left;
}
@media screen and (max-width: 720px) {
  .vision_txt {
  grid-column: 1 / -1;
  width: 100%;
  flex: none;
  }
}
.text-gradient {
  font-size: 2.6em;
  font-weight: bold;
  background: linear-gradient(to right, #0096c2, #026cac);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.marker {
  background: linear-gradient(transparent 49%, rgba(0, 150, 194, 0.40) 49%);
}

.section-header {
  position: relative;
  margin-bottom: 60px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding-top: 40px; 
}
@media screen and (max-width: 720px) {
#philosophy-section .section-header {
  margin-bottom: 40px;
}
}

.section-bg-title {
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%); 
  font-size: 4em;
  font-weight: 800;
  background: linear-gradient(to bottom, #cddce9, #f9f9f9);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
  z-index: 0;
  user-select: none;
  white-space: nowrap;
  pointer-events: none;
  transition: all 0.3s ease;
}

.section-bg-title.white { 
  color: #ffffff; 
  text-shadow: 0 4px 20px rgba(0, 0, 0, 0.03); 
}

.section-main-title {
  font-size: 2rem;
  font-weight: 700;
  color: #0096c2;
  margin-bottom: 4px;
  position: relative;
  z-index: 1;
}

.section-sub-title {
  font-size: 0.875rem;
  font-weight: 600;
  position: relative;
  z-index: 1;
}

#logo-section { background-color: #f9f9f9; }
.pt60 { padding-top: 60px; }@media screen and (max-width: 720px) {.pt60 { padding-top: 0px; }}
.conceptflex{
	padding-top: 60px;
	display: flex;
	justify-content: space-between;
	gap: 60px;
}
@media screen and (max-width: 720px) {
	.conceptflex{
	padding-top: 60px;
	display: flex;
	flex-direction:column;
	justify-content: space-between;
  gap: 0px;
	}
}

.conceptflex article .conceptflex p{
	font-size: 16px;
	font-weight: normal;
	letter-spacing: 0.1em;
	line-height: 1.6;
}

.designitem {margin-top: 30px; }
.designitem .num { font-size: 3.5em; font-weight: bold; opacity: 0.3; color: #0096c2; display: block; line-height: 1; font-style: italic; padding-right: 20px;}
@media screen and (max-width: 720px) {.designitem .num { font-size: 3em;}}
.designitem h4 {  display: flex; align-items:flex-end; font-weight: bold; color: #0096c2; font-size: 1.4em; margin: 30px 0 10px; letter-spacing: 0; }
.designitem h5 { font-weight: bold; font-size: 1.2em; }
.designitem ul { padding: 20px 0; }
.designitem ul li { line-height: 2; }
.designitem ul.flexarea_ul { padding: 10px 0 20px; }
.flex60 { display: flex; gap: 60px; }
@media screen and (max-width: 720px) {.flex60 { display: flex; gap: 10px; }}

.marquee-hero-section {
  position: relative;
  width: 100%;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 4rem 2rem;
  box-sizing: border-box;
  margin-top: -200px;
}

.marquee-bottom-section {
  position: relative;
  width: 100%;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 4rem 2rem;
  box-sizing: border-box;
  margin-top: 60px;
}

.bg-marquee-container {
  background-color: #f9f9f9;
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: flex-end;
  overflow: hidden;
  pointer-events: none;
  z-index: 0;
}

.bg-marquee-track {
  display: flex;
  width: max-content;
  will-change: transform;
}

.bg-marquee-track.move-left {
  animation: marqueeLeft 60s linear infinite;
}

.bg-marquee-track.move-right {
  animation: marqueeRight 60s linear infinite;
}

.bg-marquee-content {
  display: flex;
  align-items: center;
}

.bg-marquee-content span {
  font-weight: 800;
  font-size: 5.5rem;
  font-style: italic;
  line-height: 1;
  text-transform: uppercase;
  padding-right: 2.5rem;
  white-space: nowrap;
  color: #026cac;
  opacity: 0.2;
}

.hero-content {
  position: relative;
  z-index: 10;
  text-align: center;
}

@keyframes marqueeLeft {
  0% { transform: translateX(0%); }
  100% { transform: translateX(-50%); }
}

@keyframes marqueeRight {
  0% { transform: translateX(-50%); }
  100% { transform: translateX(0%); }
}

.logo-visual {
  flex: 1;
  display: flex;
  justify-content: center;
  align-items: center;
  background: #ddd;
  border-radius: 16px;
  padding: 50px;
  box-shadow: inset 0 0 20px rgba(0,0,0,0.02), 0 8px 20px rgba(0,0,0,0.04);
  position: relative;
}

.logo-visual_big {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  background: #ddd;
  border-radius: 16px;
  padding: 80px 200px;
  box-shadow: inset 0 0 20px rgba(0,0,0,0.02), 0 8px 20px rgba(0,0,0,0.04);
  position: relative;
}

@media (max-width: 720px) {
.logo-visual {
  padding: 50px 20px;
}
.logo-visual_big {
  padding: 80px 20px;
}
}

.color-info {
	margin-top: 20px;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 10px;
}

.color-info + .color-info {
	margin-top: 6px;
}

.color-info .color {
  content: "";
  margin-top: 4px;
  padding: 8px 20px;
}

.color-info .blue { background-color: #026cac; }
.color-info .white { background-color: #ffffff; }

.president{color: #000;}
.mt200{margin-top: 100px;}

@media screen and (max-width: 720px) {
#history-section .contentInner,#philosophy-section .contentInner{ width: 90%; margin: 0 auto;}
}